Improvement in machines for sizing and varnishing paper



ZSheets-Sheetl. R. M'cNAMEE. MACHINE-S FOR SIZING AND VARNISHING PAPER.

No. 194,453. Patented Au 21,1877

INVENTOR WITNESSES I 7/%5 M m6;

ATTORNEY N. PETERS PHOTO-LITIOGRAPHER WASHINGTON. .D C.

Philadelphia,

Machines for Sizin g and Varnishing receiving rotation by means of a crank-arm,

IMPROVEMENT ll;N MACHINE-S FOR SIZING AND VARNISHING PAPER.

Specification forming part of Letters Patent No. 1 94, 158, dated August 21, 1877.; application filed June 16,

To all whom it may concern Beit known that I, RICHARD MON AMEE, of

State of Pennsylvania, have invented a new and valuable Improvement in Paper; and I do hereby deolare 'that the following is a full, clear, and exact description of the con-i struction -andoperation of the same, reference F being had to the annexed drawings, making a part of this specification, and to the letters and i figures of reference marked thereon. j

Figure 1 of the drawings is a representation} of a top view of my improved machine for siz-F ing and varnishing paper. Fig. 2 is a longi-: tudinal vertical section of the same; and Figs. 3, 4, and 5 are detail views.

This invention has relation to improvements in means for varnishing either plain or printed paper.

Heretofore in varnishing printed labels, show-cards, and the like it has been necessary to apply the size to the surface of the paper, and afterward lay on the varnish with a'brush by hand, which is both a slow and expensive means of so doing.

The object of my invention, therefore, is to devise a mechanical means for applying the v varnish in such a manner thatthe colors of the label will not run into each other, and thereby dispense with the primary coating of size.

To this end the nature of my invention consists in the combination, with a drum, its gripers, a feed-table, and a varnishing-r01 ler, of an endwise-movable conveyor-frame. It also consists in the combination, with a drum and a varnishing-roller arranged tangential thereto, of fingers to hold the paper off of said roller, as will be hereinafter more fully set forth.

In the annexed drawings, the letter A designates the frame of my improved varnishingmachine, having an inclined feed-table, B, and an endwise-movable conveyer-frame, G, above said table, that affords bearings for the journals of a number of transverse shafts, D, that actuate the conveyor-tapes E. Motion is com municated to these shafts through the medium of a shaft, F, and belts F, a pulley, a, on the end of the said shaft F, and an endless belt, b connecting pulley a and a similar pulley, a, on the endof a cylindrical drum, B the latter bKorothersuitable-mechanism. The drum B is provided,-when made.of.wood,with strong metallic heads 0, and a deep longitudinal groove, 0, in which is seated theusual griperrod d. This rod has its bearings in headsc, and is provided uponone of its ends, that projeots through the head, ,with a dog, dfitheheel .of which engagesiwith a spur, d projecting [in ward from the frame'at each complete revolution, thereby rotating the griper-rod, and

opening the gripers until thesaidl gripers areona level with the feed-table B, .whenithe label to be varnished, having :been passed between them and drum 1B ,theserrated edgee of said dog is brought into contact with a second spur, d projecting inward from the said frame, thereby reversing the rotation of the griperrod, and causing the gripersto clamp the paper between the roller and their ends, sothat as the rotation of the said drum continues the paper label will be carried over the roller B arranged below roller B and in such a position as to be tangential thereto. This roller will be cloth-covered, and is caused to rotate in unison with the drum B by means ofa gear-wheel,

j, that engages a gear-wheel, f, applied upon the end of the drum-shaft. The roller B is in tangential contact with a cloth or composition roller, 0, that is journaled in the ends of a trough or fountain, N, and by its rotation imparts a rotary motion to the varnish-roller O aforesaid, so as to cause it to take up from the said fountain a charge of varnish, that will be transferred to the roller B whence it will be laid upon the under side of the label-that is, the printed side thereof, the said label being laid upon the feed-table face downward. Any excess of varnish will be taken up and evenly distributed by an auxiliary roller, M, that is arranged tangential to roller B in hearings in the frame A. If the paper is carried around by the drum, the dog of the latter will strike against the spur aforesaid, and the gripers will be opened, thereby releasing the label at the moment that its front edge is on a level with the conveyer-tapes. The label will then be carried to the rear end of the apparatus, with the varnished side upward, and placed by an attendant out of the way.

The conveyer-frame O aforesaid has its sides arranged in ways, and being inclined, it natu- PATENT OFFICE.

rally gravitates toward the drum. This is desirable at the moment the label is delivered to the tapes E trom saidj'f,drum,':since the nearer the edge of the convyeris to the said drum the more accurate will be the delivery of the labels from the gripers to the tapes; but after such delivery, in order to allow room for the opening of the gripers, the conveyer-frame should be thrust back out of the way in its ways g g. This I accomplish automatically by the following mechanism: The heads 0 will be provided with a cam-curve, h, at a corresponding point thereon, or with a separate and independent cam, that, at each rotation of the drum, and at the moment the label is delivered to the tapes, comes in contact with an antifriction pulley, 1;, at each side of the said frame, and thrusts the same back out of the way. These pulleys are journaled in a metallic plate, 1 that is secured to the sides of said frame by means of a set-screw,j.

In order to prevent the label, as it leaves the feed-table and is seized by the gripers,

-from sagging down upon the varnish-roller B and being smirched thereby, I employ preventive-fingers J, that extend upward at suitable distances apart from a rock-shaft, K, that is journaled in bearings on the frame or under side of the table. These fingers are held in contact with the drum by means of a spring, S, that is secured at one end to an arm, K, of said shaft, and at the other to the frame; and, in order that the said fingers may not bind against the drum, and thereby draw away the label from the gripers, shaft K will have at each end, or at one only, a projecting controllingarm, Q, the free end of which bears against the heads of said drum, and is actuated to open the fingers by the cam h aforesaid.

What I claim as new, and desire to secure by Letters Patent, is-- 1. In combination with a drum, its gripers, a feed-tab1e, and a varnishing-roller, of the endwise-movable conveyer-frame, substantially as specified. v

2. The rock-shaft K, provided with fingers 76, one end of which are attached to the spring S and controlling-arm Q, in combination with the cam on the end of the cylinder B, as and for thepurpose specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

RICHARD MGNAMEE.

Witnesses:

CHAS. F. VAN HonN, ALLEN H. GANGEWER. 

